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堆芯
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  core
On the non-compactness of the core of nonatomic convexσ-continuous measure games
      
This paper concerns with the core of nonatomic games of form f(μ), whereμ is a nonatomic nonnegative measure and f is a continuous convex function on the domain ofμ.
      
The main result of this paper is that the core of the game is not compact under the norm topology unless the game itself is a measure.
      
This shows the largeness of the core in a sense other than that defined by Sharky for finite cases.
      
For example, in water, PCL and PAA formed core-shell nanospheres due to interpolymer hydrogen bonding.
      
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  reactor core
A new supercritical water-cooled reactor (SCWR) core structure (the mixed reactor core) and a new fuel assembly design (two-rows FA) are proposed.
      
By simulating the whole reactor core, the detailed mass flow distribution in the core was obtained.
      
The possibility is discussed of using the obtained data in simulating emergency conditions in the reactor core.
      
The interaction of nuclear reactor core melt with oxide sacrificial material of localization device for a nuclear power plant wi
      
The neutron spectrum at the center of the reactor core was measured by the neutron activation method using the a priori spectrum as a superposition of partial fission and evaporation spectra.
      
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To guard against the PWR LOCA,a safety device is proposed in this article.The principle of the device and its application in engineering are analysed.And the principle experiments on the device and the results are also introduced.The experiments show that this safety device's structure is very simple, its principle realizable and it is also very economic.The safety device can work effectively to protect the PWR's core from melting in the early stage of the PWR LOCA.

本文针对压水堆发生主管道“双端断裂”的大破口失水事故而提出了一种安全装置,对其工作原理及工程上实现的可能作了浅析,对其原理性实验过程及结果作了介绍。实验表明:这种安全装置结构简单,原理正确,工程上易实现,造价低廉。它在大破口失水事故发生初期(约数十毫秒)就能充分发挥其作用。对于防止堆芯熔化具有重要意义。

The service life is a part of reliability requirement to the nuclear ship,the main factor affecting its determination is the corelife of nuclear power reactor.This paper discusses the relationship between corelife and nuclear ship service life,and on the basis of analyzing the influence factors of nuclear fuel consumption,the estimation model for weighing up the service life and core life is established.In the end, by contrast to the information about foreign armies,the deterministic principles of core life...

The service life is a part of reliability requirement to the nuclear ship,the main factor affecting its determination is the corelife of nuclear power reactor.This paper discusses the relationship between corelife and nuclear ship service life,and on the basis of analyzing the influence factors of nuclear fuel consumption,the estimation model for weighing up the service life and core life is established.In the end, by contrast to the information about foreign armies,the deterministic principles of core life are presented.

服役年限是核舰艇可靠性要求的一个组成部分,影响其确定的一个主要因素是核动力装置反应堆的堆芯寿期。本文讨论了堆芯寿期与核舰艇服役年限的关系,在分析核燃料消耗的影响因素基础上建立其估计模型以供服役年限与堆芯寿期进行权衡,最后参考军情况,提出堆芯寿期的确定原则。

There is plenty of radioactive nuclides in the core fuel matrix due to splitting or fissioning response of atomic nuclei. The radionuclide inventory in a marine reactor is calculated with KORIGEN, and the results are analysed and compared in two cases of operation-continuous operation with full power and intermittant operation with variable power. It is discussed that inventory of some radionuclides is varied with the operation history.

采用KORIGEN程序对船用堆的堆芯放射性核素总量进行了计算,并对连续满功率运行和实际变功率运行的计算结果进行了分析与比较,探讨了放射性核素总量随功率运行史的变化规律.

 
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